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> researchers have routinely been able to copy the financial details of some cards I think this is the key. The implementation of each card may differ leading
by close04 8y ago
> researchers have routinely been able to copy the financial details of some cards
I think this is the key. The implementation of each card may differ leading to inconsistent results.
As a general rule I suggest covering up the CVV or scratching it off if you're sure you have it somewhere safe. An option is to also erase the magnetic strip. It might lead to a less useful card (in cases where only magstrip would work) but definitely a more secure one. And for any NFC card an RFID shield sleeve does wonders.